Shell Model Study Of Nuclear Structure In Ga-63,Ga-65,Ga-67

Shell model calculations have been performed in f(5/2)pg(9/2) model space using two different interactions viz. jj44bpn and jun45pn to explore nuclear structure in Ga-63,Ga-65,Ga-67. Calculated excitation energies are compared with previously reported experimental values and a good agreement has been observed. Transitions strengths are also calculated using two sets of effective charges for proton and neutron and are compared with nearby Zn-62,Zn-64,Zn-66 isotopes. Occupation probabilities of protons and neutrons corresponding to individual orbitals (namely f(5/2), p(3/2), p(1/2) and g(9/2) orbital), and dominant particle configurations for individual spin states have been presented as well. Calculations suggest major role of intruder 1g(9/2) orbital in constructing the wave functions of higher angular momentum states, whereas, the lower excited states are mainly dominated by contributions from fp orbitals.